Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/pwm/renesas,tpu-pwm.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Renesas R-Car Timer Pulse Unit PWM Controller
   8
   9 maintainers:
  10   - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
  11
  12 select:
  13   properties:
  14     compatible:
  15       contains:
  16         const: renesas,tpu
  17   required:
  18     - compatible
  19     - '#pwm-cells'
  20
  21 properties:
  22   compatible:
  23     items:
  24       - enum:
  25           - renesas,tpu-r8a73a4   # R-Mobile APE6
  26           - renesas,tpu-r8a7740   # R-Mobile A1
  27           - renesas,tpu-r8a7742   # RZ/G1H
  28           - renesas,tpu-r8a7743   # RZ/G1M
  29           - renesas,tpu-r8a7744   # RZ/G1N
  30           - renesas,tpu-r8a7745   # RZ/G1E
  31           - renesas,tpu-r8a7790   # R-Car H2
  32           - renesas,tpu-r8a7791   # R-Car M2-W
  33           - renesas,tpu-r8a7792   # R-Car V2H
  34           - renesas,tpu-r8a7793   # R-Car M2-N
  35           - renesas,tpu-r8a7794   # R-Car E2
  36           - renesas,tpu-r8a7795   # R-Car H3
  37           - renesas,tpu-r8a7796   # R-Car M3-W
  38           - renesas,tpu-r8a77961  # R-Car M3-W+
  39           - renesas,tpu-r8a77965  # R-Car M3-N
  40           - renesas,tpu-r8a77970  # R-Car V3M
  41           - renesas,tpu-r8a77980  # R-Car V3H
  42           - renesas,tpu-r8a779a0  # R-Car V3U
  43           - renesas,tpu-r8a779g0  # R-Car V4H
  44           - renesas,tpu-r8a779h0  # R-Car V4M
  45       - const: renesas,tpu
  46
  47   reg:
  48     # Base address and length of each memory resource used by the PWM
  49     # controller hardware module.
  50     maxItems: 1
  51
  52   interrupts:
  53     maxItems: 1
  54
  55   '#pwm-cells':
  56     # should be 3. See pwm.yaml in this directory for a description of
  57     # the cells format. The only third cell flag supported by this binding is
  58     # PWM_POLARITY_INVERTED.
  59     const: 3
  60
  61   clocks:
  62     maxItems: 1
  63
  64   power-domains:
  65     maxItems: 1
  66
  67   resets:
  68     maxItems: 1
  69
  70 required:
  71   - compatible
  72   - reg
  73   - clocks
  74   - power-domains
  75
  76 allOf:
  77   - $ref: pwm.yaml#
  78
  79   - if:
  80       not:
  81         properties:
  82           compatible:
  83             contains:
  84               enum:
  85                 - renesas,tpu-r8a73a4
  86                 - renesas,tpu-r8a7740
  87     then:
  88       required:
  89         - resets
  90
  91 additionalProperties: false
  92
  93 examples:
  94   - |
  95     #include <dt-bindings/clock/r8a7740-clock.h>
  96
  97     tpu: pwm@e6600000 {
  98         compatible = "renesas,tpu-r8a7740", "renesas,tpu";
  99         reg = <0xe6600000 0x148>;
 100         clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
 101         power-domains = <&pd_a3sp>;
 102         #pwm-cells = <3>;
 103     };